The KZ Castor uses a dual stacked dynamic-driver setup — a dedicated 8mm driver for deep bass and a 10mm dual-magnetic driver for clear mids and highs — tuned to the Harman target curve for a natural, accurate listening experience.
Like other KZ in-ear monitors, the Castor uses a detachable 2-pin cable so you can swap cables as needed. The included flat, transparent cable resists tangling, and the resin shell is shaped for comfortable extended wear.
Specifications
| Driver | 8mm Dynamic (Bass) + 10mm Dynamic (Mids/Highs) |
| Connector | 3.5mm (via detachable 2-pin cable) |
| Impedance | 16-35 Ohm (variant dependent) |
| Sensitivity | 103-105dB |
| Frequency Response | 20Hz-40kHz |
| Cable | Flat transparent, ~120cm |
Frequently Asked Questions
Q: What is Harman-target tuning?
A: It’s a research-based frequency response curve designed to sound natural and balanced to most listeners, rather than artificially bass-heavy or bright.
Q: Can I upgrade the cable?
A: Yes, it uses a standard detachable 2-pin connector compatible with most aftermarket KZ cables.
Q: Is there a version with a microphone?
A: Mic and Type-C cable variants are available separately; confirm which version you’re ordering.




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